frequency coding


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frequency coding

[′frē·kwən·sē ‚kōd·iŋ]
(neuroscience)
A means by which the central nervous system analyzes the content of a receptor message; the frequency of discharged impulses is a function of the rate of rise of the generator current and indirectly of the stimulus strength; the greater the stimulus intensity, the higher the impulse frequency of the message.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
As the FDA with sequential frequency coding has range-angle coupling, the range and angle CRBs will be degraded when estimating the range and angle jointly [11].
The model of (35) can be solved using the genetic algorithm (GA); thus, we obtain the optimized frequency coding sequence [f.sub.k] = [f.sub.c] + k[DELTA]f.
Experiment 6: Comparison of CRBs with the Frequency Coding Sequence.
The optimized transmit frequency coding sequence k =[7 2 4 1 0 5 3 6] is adopted.
Moreover, the corresponding CRBs for the joint range and angle are derived and a CRB optimum proposal based on frequency coding is proposed; it is worth noting that the criterion of (35) can be also used to optimize subarray partition so as to improve CRB performance.
Subpulses with sequential frequency coding are transmitted and received by the antenna, as depicted in Figure 8.

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